array.from(new set(arr))去重
时间: 2023-10-07 18:04:13 浏览: 50
使用Array.from(new Set(arr))可以实现数组去重的效果。\[1\]这个方法的原理是先通过Set对象去除数组中的重复元素,然后再通过Array.from将Set对象转换为数组。这样就得到了去重后的数组。\[2\]另外,也可以使用扩展运算符...配合Set对象来进行数组去重,例如\[...(new Set(arr))\]。\[3\]无论是使用Array.from还是扩展运算符,都可以实现数组去重的效果。
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